BLM-IN-1 is an effective Bloom syndrome protein (BLM) inhibitor (KD: 1.81 μM; IC50: 0.95 μM). It induces DNAdamageresponse, apoptosis and proliferation arrest in cancer cells
BMVC4 is a G-quadruplex stabilizer. BMVC4 induces senescence by activation of pathways of response to DNAdamage that was independent of its telomerase inhibitory activity.
Potent Chk2 inhibitor (IC50 = 3 nM). Shows >63-fold selectivity for Chk1 over Chk2 and a panel of 84 other kinases. Inhibits Chk2 activation in response to etoposide-induced DNAdamage in HT29 cells. Blocks ionizing radiation-induced apoptosis of mouse thymocytes. Caldwell et al (2011) Structure-based design of potent and selective 2-(quinazolin-2-yl)phenol inhibitors of checkpoint kinase 2. J.Med.Chem. 54 580 PMID:21186793
The protein p53, often called the 'guardian of the genome,' is a transcription factor that is activated in response to cellular stress (low oxygen levels, heat shock, DNAdamage, etc.) and acts to prevent further proliferation of the stressed cell by promoting cell cycle arrest or apoptosis. Its role as a tumor suppressor is evident by the observation that approximately 50% of human tumors have mutated or non-functional p53. PK7242 is an inducer of reactivation of mutant p53 in cancer cells. In cancer cells carrying the Y220C mutant, PK7242 binds to the p53-Y220C core domain and induces growth inhibition, cell-cycle arrest, and apoptosis.
IMP-1700 is an inhibitor of bacterial DNA repair.1It potentiates the activity of the quinolone antibiotic ciprofloxacin against methicillin-resistantS. aureus(MRSA) with a combination index value of 0.7. IMP-1700 inhibits the ciprofloxacin-induced bacterial SOS response, a process that repairs DNAdamage, in a reporter assay in a concentration-dependent manner. It is also active againstE. coli, as well as methicillin-resistant and -sensitive S. aureus, when used alone (EC50s = 0.5, 0.21, and 3.8 μM, respectively). 1.Lim, C.S.Q., Ha, K.P., Clarke, R.S., et al.Identification of a potent small-molecule inhibitor of bacterial DNA repair that potentiates quinolone antibiotic activity in methicillin-resistant Staphylococcus aureusBioorg. Med. Chem.27(20)114962(2019)
Tricarbonyldichlororuthenium(II) dimer, a pharmacological CO donor, prevents ischemia reperfusion (I R)-induced oxidative damage to the gastric mucosa by enhancing gastric blood flow (GBF) and reducing DNA oxidation and systemic inflammatory response.